When an assassination of someone close to Frank transpires, Frank orders all hands on deck to catch the killer. Working the case, Danny and Baez go see Mario Hunt ("Method Man"), a well-known member of a deadly gang, in the first of a two-part season finale of BLUE BLOODS, Friday, April 24 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured: Bridget Moynahan as Erin Reagan, Marisa Ramirez as Det. Maria Baez. Donnie Wahlberg as Danny Reagan. Photo: Jeff Neira/CBS ©2015 CBS Broadcasting Inc. All Rights Reserved.